Chainsaw



FIG. 1 is a left perspective view of the chainsaw;

FIG. 2 is a front view of the chainsaw shown in FIG. 1;

FIG. 3 is a rear view of the chainsaw shown in FIG. 1;

FIG. 4 is a right side view of the chainsaw shown in FIG. 1;

FIG. 5 is a left side view of the chainsaw shown in FIG. 1;

FIG. 6 is a top view of the chainsaw shown in FIG. 1; and,

FIG. 7 is a bottom view of the chainsaw shown in FIG. 1.

The broken lines shown in the drawings represent unclaimed portions of the chainsaw and form no part of the claimed design. 

I claim the ornamental design for a chainsaw, as shown and described. 